Alexandee eudolph



(No Model.) 2 Sheets-Sheet- 1.

A. RUDOLPH;

WINDOW SASH. N0. 276,886. Patented Mayfl, 1883.

2 Sheets-Sheet 2.

(No Mode.)

A. RUDOLPH.

WINDOW SASH.'

Patented VMay l, 1883.

Fia. 3.

j UNITED STATES PATENT OFFICE.

ALEXANDER RUDOLPH, OF SAN FRANCISCO, CAL., ASSIGNOR OF TWO-THIRDS TOJOSEPH A. BEOSEY AND THOMAS J. WELSH, OF SAME PLAGE.

WINDOW-SASH.

SPECIFICATION forming part of Letters Patent No. 276,886, dated May 1,1883.

Application filed November 14, 1882. (No model.)

To all whom it may concern Be it known that I, ALEXANDER' RUDOLPH, ofthe city and county of San Francisco, State of California, have inventedan Improved Window-Sash; and I hereby declare the following to be afull, clear, and exact description thereof.

My invention relates to certain improvements in window-sashes; and itconsists of a to sash pivoted at each side to a guide-piece,

these guide-pieces itting into grooves in the frame, so as to run up'anddown, and the pivots allowing the sash to he turned, and in combinationwith these a sei ies of hooks or clasps, I by which the sash andguidepieces are drawn closely together to exclude air, and are supportedbytheheelof the clasps when unlocked.

It also consists of a peculiar beveled project` ing plate upon one sideand a corresponding socket upon the other, where the pivot-pins unitethe sashes to the guide-pieces, which serve to force the sashes awayfrom the guidepieces when they are turned, and thus concentrate allfriction to a point about the pivotpins. j

Referring to the accompanying drawings for a more complete explanationof my invention, Figure 1,'Sheet 1, is a front view of a portion of thewindow sashes and frames broken and drawn together to show my invention.Fig. 2, Sheet l, is a similar transverse section. Fig. .3, Sheet 2,shows a guide-piece with socket and pin; Fig. 4, the corresponding sashand locking-hook. Fig. 5 shows the hook separately. 'Fig. 6 shows thesash and guide-piece locked together. Fig. 7 shows the edges of theguidepiece and the sash with the pivot-pin and the beveled projectionand socket. Fig. 8 shows the separation ofthe guide-piece from the sashby the action of the hooks against the pin.

A A are the sides of the window-frame, and B are the window-sashes,which are made enough narrowerthan the spaces in which they are to slideto admit the guidepieces C to lie between the sash and the frame. Theguidepieces and the corresponding meeting edges of the sash are tonguedand grooved longitudinally, as at a a, so that when drawn close togetherthese tongues and grooves serve to ex- 5'o clude air. The sashes areprovided at the center of their opposite edges with pivot-pins D, whichturn in correspondin g socket, D', in the faces of the guides C.

In orderto separate the sashes from the guides when the sashes areturned upon their 5 pivots, I employ projecting beveled blocks b, inwhich the sockets D are formed, and corresponding depressions around thepivot-pins D; or the position of these may be reversed. Their operationwill then be as follows: When 6o the sash stands parallel with theguides the projections b fit into the corresponding depressions, andthesashes lit closely against the guides, the tongues and grooves a a also{itt-ing. When the sash is turned the action of the projectingbevel-piece Z1 will be to force the sash away from the guides, and throwthem so far apart as to disengage the tongues and grooves, thus leayingthe sash freeto turn upon its pivots, while at the same time there 7owill be sufcient friction at this point about the pivots to hold thesash in any position desired.

In order to draw the sashes and guide-pieces closely together when they'are in line with .75 each other, I employ peculiar clasps or hooks,

F, which lie within a grooved plate, Gr, in the edge of the sash, andhave shafts H extending `out to the sides of the sashes, as shown. Theseshafts have thumb-pieces I upon their So outer ends, corresponding withthe position` of the hook inside, so that when fastened thesethumb-pieces stand transversely and when un-v clasped they standvertically. The guides O have sockets J corresponding with the hooks 8 5F, and pins K across them. When the sashes are in such position that thehooks stand oppositethe pins K they may be turned so as to engage thehooks, and their peculiar shape will cause them to draw the guidesclosely 9o against the sash, and thus close the space hetween them tightand prevent any entrance ot' air, as well as locking them together, sothat when the sash is to be raised in the usual way the two guides movetogether with the sash as one piece. When the pieces I are turned tounlatch the clasps the lower portions or heels,f, will strike the pinsK, and willforce the sashes and guides apart at these points, are freeto act independently.

so that they IOO Having thus described my invention,what I claim as new,and desire to secure by Letters Patent, is v l. In a window, the sash Band the independent guide-pieces C, with the pivot-pin D andcorresponding socket, D', whereby the sash may be turned within theguides, in combination with the projection or beveled piece b and thecorresponding depression, by which the sash and guide-pieces are forcedapart when the sash is turned, substantially as herein described'.

2. In a. window, and in combination with the sash B and the independentguide-pieces O, to which it is pivoted, the hooks or clasps F, withtheir shafts H and thumb-pieces I, and

ALEX. RUDOLPH.

Witnesses S. H. NoURsE, H. B. APPLEWHAITE.

